Claims
- 1. A composition which comprises a complex of:
- (a) a titanium-containing material having the formula ##STR14## in which X.sub.1 is cyclopentadienyl, chlorine, bromine or C.sub.1 -C.sub.6 alkoxy; X.sub.2 and X.sub.3 are independently chlorine, bromine, or C.sub.1 -C.sub.6 alkoxy; Y.sub.1 and Y.sub.2 are independently chlorine or bromine; and Z is hydrogen or a C.sub.1 -C.sub.10 hydrocarbyl group; and
- (b) a complexing agent selected from the group consisting of:
- (i) ethers having the formula R.sub.1 OR.sub.2 in which R.sub.1 and R.sub.2 are C.sub.1 -C.sub.4 alkyl;
- (ii) cyclic ethers having the formula ##STR15## in which n is an integer from 4 to 7; and (iii) tertiary amines.
- 2. A composition according to claim 1 in which Z is hydrogen, or a hydrocarbyl group having from 1 to 10 carbon atoms, said hydrocarbyl group heing an aliphatic group or having a cyclical portion separated by at least one methylene group from the methylene group bridging the aluminum and titanium atoms.
- 3. A composition according to claim 2 in which Z is a straight chain alkyl group having from 2 to 6 carbon atoms.
- 4. A composition according to claim 1 in which Z is hydrogen.
- 5. A composition according to claim 1 having a linear structure.
- 6. A composition according to claim 1 in which X.sub.1, X.sub.2 and X.sub.3 are independently chlorine or bromine.
- 7. A composition according to claim 1 in which at least one of X.sub.1, X.sub.2 or X.sub.3 is C.sub.1 -C.sub.6 alkoxy.
- 8. A composition according to claim 1 in which at least one of X.sub.1, X.sub.2 or X.sub.3 is C.sub.1 -C.sub.4 alkoxy.
- 9. A composition according to claim 1 in which X.sub.1, X.sub.2 and X.sub.3 are all C.sub.1 -C.sub.4 alkoxy.
- 10. A composition according to claim 1 in which the complexing agent is a dialkyl ether having identical alkyl groups.
- 11. A composition according to claim 10 in which the ether is dimethyl ether.
- 12. A composition according to claim 10 in which the ether is diethyl ether.
- 13. A composition according to claim 1 in which the complexing agent is a cyclic ether.
- 14. A composition according to claim 13 in which the cyclic ether is tetrahydrofuran.
- 15. A composition according to claim 1 in which the complexing agent is a tertiary amine.
- 16. A composition according to claim 15 in which the tertiary amine is a trialkyl amine having from 1 to 4 carbon atoms in the alkyl groups.
- 17. A composition according to claim 15 in which the tertiary amine is a tetra-(C.sub.1 -C.sub.4 alkyl)alkylene diamine.
- 18. A composition according to claim 15 in which the tertiary amine is pyridine.
- 19. A composition according to claim 1 in which the complexing agent is included in at least two molar equivalents per equivalent of titanium-containing material.
- 20. A composition according to claim 1 in which the complexing agent is included in an amount of between about 2 and about 4 molar equivalents per equivalent of titanium-containing material.
Parent Case Info
This is a continuation-in-part of U.S. application Ser. No. 818,589, filed Jan. 14, 1986, now abandoned.
US Referenced Citations (6)
Non-Patent Literature Citations (5)
Entry |
Tebbe et al., JACS 100 pp. 3611-3613 (1978). |
Tebbe et al., JACS 102 pp. 6149-6150 (1980). |
Pine et al., J. Org. Chem. V50, 1212 (1985). |
Tebbe et al., JACS 101 pp. 5074-5075 (1979). |
Tebbe et al., JACS 102 pp. 6876-6878 (1980). |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
818589 |
Jan 1986 |
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